mirror of https://github.com/GNOME/gimp.git
205 lines
11 KiB
C
205 lines
11 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __GIMP_PAINT_CORE_H__
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#define __GIMP_PAINT_CORE_H__
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#include "core/gimpobject.h"
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#define GIMP_TYPE_PAINT_CORE (gimp_paint_core_get_type ())
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#define GIMP_PAINT_CORE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_PAINT_CORE, GimpPaintCore))
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#define GIMP_PAINT_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_PAINT_CORE, GimpPaintCoreClass))
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#define GIMP_IS_PAINT_CORE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_PAINT_CORE))
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#define GIMP_IS_PAINT_CORE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_PAINT_CORE))
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#define GIMP_PAINT_CORE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_PAINT_CORE, GimpPaintCoreClass))
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typedef struct _GimpPaintCoreClass GimpPaintCoreClass;
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struct _GimpPaintCore
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{
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GimpObject parent_instance;
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gint ID; /* unique instance ID */
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gchar *undo_desc; /* undo description */
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GimpCoords start_coords; /* the last stroke's endpoint for undo */
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GimpCoords cur_coords; /* current coords */
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GimpCoords last_coords; /* last coords */
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GimpVector2 last_paint; /* last point that was painted */
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gdouble distance; /* distance traveled by brush */
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gdouble pixel_dist; /* distance in pixels */
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gint x1, y1; /* undo extents in image coords */
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gint x2, y2; /* undo extents in image coords */
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gboolean use_saved_proj; /* keep the unmodified proj around */
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GeglBuffer *undo_buffer; /* pixels which have been modified */
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GeglBuffer *saved_proj_buffer; /* proj tiles which have been modified */
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GeglBuffer *canvas_buffer; /* the buffer to paint the mask to */
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GeglBuffer *comp_buffer; /* scratch buffer used when masking components */
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GeglBuffer *paint_buffer; /* the buffer to paint pixels to */
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gint paint_buffer_x;
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gint paint_buffer_y;
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GeglBuffer *mask_buffer; /* the target drawable's mask */
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gint mask_x_offset;
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gint mask_y_offset;
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GimpApplicator *applicator;
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GArray *stroke_buffer;
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};
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struct _GimpPaintCoreClass
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{
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GimpObjectClass parent_class;
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/* virtual functions */
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gboolean (* start) (GimpPaintCore *core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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const GimpCoords *coords,
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GError **error);
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gboolean (* pre_paint) (GimpPaintCore *core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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GimpPaintState paint_state,
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guint32 time);
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void (* paint) (GimpPaintCore *core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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GimpSymmetry *sym,
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GimpPaintState paint_state,
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guint32 time);
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void (* post_paint) (GimpPaintCore *core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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GimpPaintState paint_state,
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guint32 time);
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void (* interpolate) (GimpPaintCore *core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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guint32 time);
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GeglBuffer * (* get_paint_buffer) (GimpPaintCore *core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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GimpLayerMode paint_mode,
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const GimpCoords *coords,
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gint *paint_buffer_x,
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gint *paint_buffer_y,
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gint *paint_width,
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gint *paint_height);
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GimpUndo * (* push_undo) (GimpPaintCore *core,
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GimpImage *image,
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const gchar *undo_desc);
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};
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GType gimp_paint_core_get_type (void) G_GNUC_CONST;
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void gimp_paint_core_paint (GimpPaintCore *core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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GimpPaintState state,
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guint32 time);
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gboolean gimp_paint_core_start (GimpPaintCore *core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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const GimpCoords *coords,
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GError **error);
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void gimp_paint_core_finish (GimpPaintCore *core,
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GimpDrawable *drawable,
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gboolean push_undo);
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void gimp_paint_core_cancel (GimpPaintCore *core,
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GimpDrawable *drawable);
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void gimp_paint_core_cleanup (GimpPaintCore *core);
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void gimp_paint_core_interpolate (GimpPaintCore *core,
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GimpDrawable *drawable,
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GimpPaintOptions *paint_options,
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const GimpCoords *coords,
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guint32 time);
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void gimp_paint_core_set_current_coords (GimpPaintCore *core,
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const GimpCoords *coords);
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void gimp_paint_core_get_current_coords (GimpPaintCore *core,
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GimpCoords *coords);
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void gimp_paint_core_set_last_coords (GimpPaintCore *core,
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const GimpCoords *coords);
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void gimp_paint_core_get_last_coords (GimpPaintCore *core,
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GimpCoords *coords);
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void gimp_paint_core_round_line (GimpPaintCore *core,
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GimpPaintOptions *options,
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gboolean constrain_15_degrees);
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/* protected functions */
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GeglBuffer * gimp_paint_core_get_paint_buffer (GimpPaintCore *core,
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GimpDrawable *drawable,
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GimpPaintOptions *options,
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GimpLayerMode paint_mode,
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const GimpCoords *coords,
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gint *paint_buffer_x,
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gint *paint_buffer_y,
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gint *paint_width,
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gint *paint_height);
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GeglBuffer * gimp_paint_core_get_orig_image (GimpPaintCore *core);
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GeglBuffer * gimp_paint_core_get_orig_proj (GimpPaintCore *core);
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void gimp_paint_core_paste (GimpPaintCore *core,
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const GimpTempBuf *paint_mask,
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gint paint_mask_offset_x,
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gint paint_mask_offset_y,
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GimpDrawable *drawable,
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gdouble paint_opacity,
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gdouble image_opacity,
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GimpLayerMode paint_mode,
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GimpPaintApplicationMode mode);
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void gimp_paint_core_replace (GimpPaintCore *core,
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const GimpTempBuf *paint_mask,
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gint paint_mask_offset_x,
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gint paint_mask_offset_y,
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GimpDrawable *drawable,
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gdouble paint_opacity,
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gdouble image_opacity,
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GimpPaintApplicationMode mode);
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void gimp_paint_core_smooth_coords (GimpPaintCore *core,
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GimpPaintOptions *paint_options,
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GimpCoords *coords);
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#endif /* __GIMP_PAINT_CORE_H__ */
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